Plaster replica of grey Basalt Cubit Rod inscribed with nine main divisions [18.5 to 19.5 mm] and one to sevenfold subdivisions thought to be astronomical in nature. Made from original now held at the Egyptian Museum in Cairo, 2,500 BC. Identical to other replica [Inv. No. 1935-151]. Plaster replica of grey Basalt Cubit Rod inscribed with nine main divisions [18.5 to 19 1931